Which of the following describes a characteristic of demineralization system wastewater?

Demineralization systems are designed to remove minerals and salts from water, resulting in what is often referred to as "demin" or deionized water. The process of demineralization typically involves ion exchange, reverse osmosis, or other treatment methods that may generate wastewater.

The correct answer indicates that demineralization system wastewater is characterized by intermittent discharge, meaning that the wastewater produced does not flow continuously but rather is released in cycles or batches. This can occur due to the nature of the operation of the demineralization equipment, which may only discharge wastewater when specific levels of contaminant buildup are reached, or when maintenance cycles necessitate flushing of the system.

In contrast to continuous discharge, which implies a steady and ongoing release of wastewater, intermittent discharge better reflects the operational realities of demineralization processes where water is treated in batches. Understanding the characteristics of wastewater from demineralization systems is important for managing effluent and complying with environmental regulations.